High severity · published Jul 23, 2026
CVE-2026-64804
In JetBrains WebStorm before 2026.2 arbitrary code execution was possible before granting project trust via project-local linter tooling
8.4
CVSS
0.2%
EPSS
No
On KEV
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Local
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 9% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
WE
WebStorm · JetBrains
before 2026.2 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-64804
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-64804
Vendor Advisory
https://www.jetbrains.com/privacy-security/issues-fixed/
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